Sistem Monitoring Energi Listrik 3 Fasa Berbasis IoT Dengan Protokol Modbus RS-485 Menggunakan ESP32 . INHARDWARE [Internet]. 2025 Dec. 22 [cited 2026 Oct. 8];3(2):1-10. Available from: https://jih.akamigas.ac.id/index.php/inhardware/article/view/72